Home - Return to Previous Page
Additional Images

APR Cast Race DP Exhaust System - A4/A5/Q5 - B8/B8.5 - 1.8T/2.0T

Email or Call us at 203-483-6100 for Best Price

DPK0019~111;112

APR is pleased to present the ultimate Cast Downpipe Exhaust System!

Upgrading the restrictive factory downpipe with the APR Cast Downpipe Exhaust System is a great way to increase performance and add a sophisticated growl to the exhaust note. Ideal performance is achieved through expelling exhaust gases at maximum velocity through APR's proprietary, low-turbulence, investment cast downpipe. Designed and assembled in-house, the system utilizes only premium materials and world-class manufacturing techniques to deliver unmatched quality and reliability.

Pricing: $769.99

Customize Your Item

76mm to 60mm reducer
Universal 76mm Catback Fit Kit
Qty:
Free Economy Shipping to Cont 48 US

Description

APR is pleased to present the ultimate Cast Downpipe Exhaust System!

Upgrading the restrictive factory downpipe with the APR Cast Downpipe Exhaust System is a great way to increase performance and add a sophisticated growl to the exhaust note. Ideal performance is achieved through expelling exhaust gases at maximum velocity through APR's proprietary, low-turbulence, investment cast downpipe. Designed and assembled in-house, the system utilizes only premium materials and world-class manufacturing techniques to deliver unmatched quality and reliability.

The factory downpipe system consists of smaller, 63" piping with varying bends and multiple restrictive high-cell-count catalysts, all of which contribute to a less than ideal flow path and hindered performance. APR's engineers took a multi-step approach to maximizing flow, reducing under hood temperature, and eliminating unnecessary restrictions all in a unique package only APR can deliver.

Quick Facts

  • +40-47 HP & +36-45 FT-LBS over APR Stage I (B8 A4 2.0T)
  • Full 76mm Race DP system
  • Ultra smooth cast inlet for unmatched performance
  • GESI High-flow catalysts
  • T304 stainless steel construction
  • Argon back-purged TIG welding
  • OEM-style low-profile slip-on clamps
  • OEM-style internally-corrugated flex section
  • Investment cast secondary oxygen sensor bungs
  • Compatible with the OEM catback exhaust
  • In-house design, assembly and quality control
  • All hardware and instructions included
  • APR Stage II ECU Upgrade price waived
  • Limited lifetime warranty
  • The factory downpipe system consists of smaller, 63" piping with varying bends and multiple restrictive high-cell-count catalysts, all of which contribute to a less than ideal flow path and hindered performance. APR's engineers took a multi-step approach to maximizing flow, reducing under hood temperature, and eliminating unnecessary restrictions all in a unique package only APR can deliver.

    Cast Race DP

    The Race DP is like nothing else on the market. The investment-cast, bell-mouth inlet provides an ultra smooth transition between the turbo’s 80mm outlet and the high quality catalyst’s inlet. All of the tubing in the system is upgraded from the awkwardly-kinked, 60mm tubing to attractively-brushed, straight-through and mandrel-bent 76mm tubing. The CNC laser cut bracket provides a strong and accurately positioned mounting point to take the weight of the Race DP off the turbocharger, and the internally-corrugated flex section gives the Race DP the flex it needs under engine movement. Finally, the Race DP uses T304 stainless steel components that are TIG welded together with argon back-purging, ensuring the system not only looks great on the inside and out, but stands the test of time.

    76mm Midpipe

    The APR Cast Race DP Exhaust System is a “full” Race DP, as it also includes the midpipe section underneath the vehicle. The factory midpipe uses awkwardly-kinked, 60mm tubing with some systems featuring a chambered resonator that poses a large restriction, especially vehicles with upgraded turbochargers. The APR midpipe eliminates the front resonator, giving the exhaust a slightly more aggressive note, while eliminating performance robbing restrictions. Finally, the midpipe uses attractively-brushed, straight-through and mandrel-bent 76mm T304 stainless steel tubing.

    Flex Section

    The APR midpipe use an OEM-style flex section that is fully sealed with a corrugated inner lining to improve flow and reliability. The low profile design and minimal use of bradding material eliminates clearance issues common with other designs that can billow, rub, rattle and fray over time. The flex section is constructed from T304 stainless steel and is argon back-purged when TIG welded to the Race DP.

    Catalytic Converter

    APR’s engineers specified a high-quality and high-flow GESI metal 300-cell catalyst ideal for forced induction application. During dyno testing, the 100mm x 100mm design showed no measurable loss in power, thanks to the catalyst’s design.

    Internally the catalytic converter feature a proprietary wash coat that helps to reduce emissions and smell common on cat-less setups. The low-profile catalyst features a fully captured substrate brick, which is furnace brazed to the outer mantle and physically captured by the diffuser cones preventing rattling, rotation, and damage to the substrate. Subsequently, a byproduct of running the catalyst is a reduction in noise, making the system as a whole more pleasing to the ear.

    Bracket

    Attached to the Race DP is a high quality mounting bracket. The bracket is constructed from T304 stainless steel and is CNC-machined and CNC-bent to exact tolerances. The bracket is TIG welded to the piping and argon back-purged.

    Clamps

    Our system uses OEM-style low-profile slip clamps designed to eliminate the need for flanges, swedging, or slip fittings. By using this low profile design, the exhaust system can be positioned higher in the exhaust tunnel and away from the ground with better clearances compared to flanged setups. Each clamp allows for less turbulence and greater accuracy at the connection points as the pipes simply butt up to one another rather than the ambiguity and voids associated with swedged slip fittings. Furthermore, the clamp doesn’t rely on deforming the pipe to provide a tight seal, making install and removal more convenient.

    Oxygen Sensor Bung

    APR’s Engineers paid special attention to the details when designing the APR Cast Race DP Exhaust System all the way down to the oxygen sensor bung. APR’s O2 bung is investment cast from T304 stainless steel and is curved to perfectly fit on the catalyst, without protruding into the pipe, as this would further impede airflow beyond the sensor itself. The bung is TIG welded to the piping and argon back-purging is used to ensure the interior surface is smooth and clean.

    Reducer

    A simple and removable, T304 stainless steel reducer, featuring a smooth transition, is included, making the APR Cast Race DP Exhaust System directly compatible with the OEM catback exhaust system.

    Gasket

    Included with each system is an OEM gasket, designed to mate between the Race DP and the turbocharger.

    Extended Fitment Details

    This product fits the following vehicle configurations:

    YEARSMAKE MODELSUBMODELENGINEDRIVETRAINTRANSMISSIONNOTES
    AudiA41.8 TFSI EA888 Gen 1 & 2.0 TFSI EA888 Gen 2Quattro & FWD LHD-Only
    AudiA51.8 TFSI EA888 Gen 1 & 2.0 TFSI EA888 Gen 2Quattro & FWD LHD-Only
    AudiQ51.8 TFSI EA888 Gen 1 & 2.0 TFSI EA888 Gen 2Quattro & FWD LHD-Only

    Details

    • DPK0019~111;112
    • DPK0019~111;112
    • APR
    • New

    Shipping Information

    • Item Requires Shipping
    • 26.0 lbs.
    • W12.0000” x H12.0000” x L45.0000”
    • Free Economy Shipping to Cont 48 US

    Customer Reviews

    Comment Total Reviews (0)

    Write the First Review!

    You must login to post a review.